x402 merchant
Japan Business Day API$0.005 / calljapan-business-day-api.matchan962.workers.dev ↗
JapanBusiness-dayHolidayFintechLogistics

Japanese traditional calendar for a date: rokuyo (taian/butsumetsu... lucky days used for weddings, funerals, contracts), Japanese era (Reiwa) date, old lunisolar calendar date incl. leap months, 24 solar terms (sekki) and year eto. Verified against the National Astronomical Observatory of Japan.

MerchantReport

0x1d81…2859

0x1d813e4e4c7b0ae7900a6d2b6bca560941102859Explorer
Received
$0.22↓ 81%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
28↓ 71%
Last 7d vs prior 7d
7
Distinct counterparties
Over the whole indexed history

Received $0.22 of the $834.00M Roundhouse has indexed across 1,300,369 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (29)

Funds flow over time

Activity

AprMayJunJulAugSepOct
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x6a0b…4518$0.00$0.091011d agoGraph
0xec2a…d034$0.00$0.081010d agoGraph
0x54e1…f4e0$0.00$0.0341h agoGraph
0xc9c7…1670$0.00$0.02210d agoGraph
0x3ed9…430e$0.00$0.01121d agoGraph
0xa1d1…1978$0.00$0.00514d agoGraph
0x6e94…6c9c$0.00$0.005113d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

No concentration or self-dealing patterns detected in all 29 observed settlements.

Recent activity

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x1d81…2859's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x1d813e4e4c7b0ae7900a6d2b6bca560941102859

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0x1d813e4e4c7b0ae7900a6d2b6bca560941102859

curl -s 'https://api.roundhouseai.io/v0/merchants/0x1d813e4e4c7b0ae7900a6d2b6bca560941102859'
curl -s 'https://api.roundhouseai.io/v0/entities/0x1d813e4e4c7b0ae7900a6d2b6bca560941102859/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.